Cutter for cigarette machines



Feb. 23, 1932. M, P, E, HQHN l,846,807

CUTTER FOR CIGARETTE MACHINES Filed Oct. 15; "1926 3 Sheets-Sheet 1 Feb. 23,1932. M. PL E. HOHN CUTTER FOR CIGARET TE MACHINES 3 Sheets-Sheet 2 Filed Oct. 15, 1926 5 my lzzamrfi Feb. 23, 1932.

M. P. E. HOHN 1,846,807

CUTTER FOR CIGARETTE MACHINES Filed Oct. 15, 1926 3 Sheets-Sheet 5 Patented Feb. 23, 1932 UNITED STATES PATENT orFicE MAX PAUL ERNST HOHN, OF DRESDEN, GERMANY, ASSIGNOR TO UNIVERSELLE CIGARETTENMASCHINEN-FABRIK,J. G. Mfi'LL-ER & (10., OF DRESDEN, GERMANY CUTTER FOR CIGARETTE MACHINES Application fiIed October 15, 1926, Serial No. 141,779, and in Germany January 28, 1926.

longitudinally of the continuously fed cigarette rod, but instead will revolve in a plane inclined to the longitudinal direction of the cigarette rod so that the cutting edge of the sickle shaped cutter in performing its cutting operation will follow the forward movement of the rod.

The present invention has for its object to provide a device substantially of the above described construction in which the cutter during its operation will be continuously ground.

Inasmuch as the grinding roll must move to suit the continuously varying position of the cutting edge my invention also has for its object to provide a singlecigarette rod guide movable during the cutting operation with the rod so that the sickle shaped cutter will pass through said guide without producing any friction and the cutting of the cigarette rod to uniform sections of predetermined size be greatly facilitated.

A still other object of this invention is to provide means for controlling the grinding roll so that thelatter will continuously remain in engagement with the cutting edge of the cutter.

And still another object of this invention is to so construct the device that its operation notwithstanding the modern high speed with which it is-run, is rendered noiseless and the wear of the parts of the device reduced to a minimum. A I

With these and other objects in view my invention consists in the novel construction, combination and arrangement'of parts as will be'hereinafter more fully described and defined in the appended claims.

My invention is illustrated in the accompanying drawings in which similar reference characters denote corresponding parts in which Fig. 1 is a side elevation partly in section of my new device; Fig. 2 is a'plan view thereof: Fig. 3 is a vertical section on line 83 of Fig. 2 in the direction of the arrows;

Fig. 4 is an elevation of the cutter and of the is a spindle 6 driven from a suitable sourcethrough toothed wheels, 3, 4 and 5 and which is formed with a worm 7. This worm meshes with a worm gear-"'8 formed at one end of sleeve 9 rotatively mounted on a vertical axle 10. The opposite. end of said sleeve 9 is formed with a bevelgear 11 which meshes with a bevel gear 12 mounted on the horizontally disposed shaft 13 of the cutter carrier. This shaft is rotatively mounted in a cap or lid 14 open at its bottom and which is adapted to enclose within itself the bevel gears 11 and 12. This cap 14 at its open bottom is formed with an annular flange 16 adapted to rotatively bear on an annular track 15 formed around a circular opening provided in the top of the casing 1. The track 15 is arranged concentrically to the axle of the.

spindle 10. .The cap 14 is adapted to be held in position on the track by bolts 17 fixed to and projecting from lateral flanges provided on the track and which bolts are adapted to extend through concentric slots 17,pro-- videdin corresponding flanges formed in the rim 18 at the bottom of the cap 14. One end of the shaft 13 projects outwardly from the cap 14 and is formed with a bifurcated por tion 19. Bearing in the forks or arms of said portion 19 is a pin 22 on which is rotatively mounted the knife carrier 20 by means of a lug 21 projecting from the rear face of the latter. This cutter carrier 20 can thus be turned about the pivot or pin 22 and can be secured in the adjusted position by means of set screws 23 which work in bracket arms 24 projecting from the rear wall of the carrier 20 at both sides of the forked portion 19. The ends oft-he said screws 23 are adapted to clamp said carrier against the forked portion 191 Thus thecutter carrier 20 can be easily adjusted to any inclination required to adapt the cutter 25 to the momentary speed of the cigarette rod. The inclination of the cutter shaft 13 can be at the same time correspondingly adjusted to permit such correction as would be necessary to have the cutter 25 during its cutting operation move in thedirection and with the speed of said cigarette rod but cut transversely and exactly at a right angle to the longitudinal direction of said cigarette rod.

26 denotes a tube or guide for the cigarette rod which is mounted in a bracket 27 secured to a cross member 30. This cross member is carried by two rods 28 arranged parallel to one another and to the axis of the cutter shaft 13. These two rods 28 extend into the interior of the casing 1 through its wall and bear in guide sleeves 29. The inner ends of the two rods 28 are connected to one another by a member 30', to which is pivoted one end of a connecting rod 31. The other end of said connecting rod engages a crank pin 32 provided on the gear 3. The cutter 25 is mounted in a correspondingly shaped recess 33 formed in the front face of the cutter carrier 20 so as to be longitudinally displaceable thereinand can be secured in desired position by clamping jaws 34 (Figs. 1 and 4) fixed by screws to the cutter carrier 20.

The grinding roll 35 serves for grinding the curved cutting edge 36 (Fig. 5) of the cutter. The cutter receives a rotary motion so that for instance point w will travel in a circular path indicated by the arrow 3 (Fig. 4). In addition the blade 25 is inclined relative to the grinding roll 35 so that it occupies the position shown in Fig. 5. As a result thereof the grinding roll 35 will cut a facet on the cutting edge, as is clear from Fig. 5. The spindle37 of the grinding roll must be arranged at a corresponding inclination to the face of the cutter. To this end the spindle 37 bears in a bearing 38 and is fitted on its outer end with a nut 39 and a lock nut 39' permitting the exact adjustment of the spindle and thus also of the grinding roll 35. The bearing 38 is: formed with a. disk likebase 40 which is screwed to a corresponding disk like plate 41 by means of bolts projecting from the latter through concentric slots 42 provided in the base 40 and permitting dis lacem'ent and thereby insurlng the correct inclination of the spindle 37 to the cutting edge. The plate 41 is mounted on the end of a rock lever 43 which is pivoted at 44 in a bracket 45 formed on a slide 46.

This slide can move in the horizontal guide K I said spindle carrying a disk like handle 52 for the manipulation of said slide. On

the rotation of the handle 52 the slide 46 is displaced carrying with it the pivot 44 of the rock lever 43. Connected to the rock lever at 53 through the medium of a link 55 is one end of a rod 54 guided in a sleeve 56 fixed to the frame 1, the other end of said rod 54 being pivoted to a connecting rod 57 mounted on a crank pin 58 projecting from the gear 5. When longitudinal movement is imparted to the connecting rod 54 the grinding roll 35 is adjusted relative to the cutter blade 25 in such manner that it will always be in contact with the cutting edge 36 of the cutter. It is seen that the grinding roll 35 is not driven by any positive means but will be turned a few degrees only by contact with the cutting edge 36 of the cutter 25.

What I claim is 1. In a cigarette rod cutting r achine, a. reciprocating guide for the continuously fed cigarette rod adapted to move with the speed of the latter. a revolving sickle shaped cutter, means to adjust said cutter to difierent lanes inclined relative to the movement 0 said rod, said cutter adapted during its cutting operation to pass through said guide and means for securing said cutter at the inclina tion necessary to adapt it to the speed of the cigarette rod.

2. In a cigarette rod cutting machine, a. reciprocatin guide for the continuously fed cigarette ro adapted to move with the speed of the latter, a revolving and adjustably suspended cutter carrier, mounted on a drivin shaft. a sickle shaped cutter adjustably fixed in said carrier, means on said carrier adated to cooperate with means on said driving s aft for positioning said carrier into different planes inclined relative to the movement of said rod whereby during its cutting operation the cutter will pass through said guide and means for securing said carrier at the adjusted inclination necessary to adapt it to the speed of the cigarette rod.

3. In a cigarette rod cutting machine,a

reciprocating guide for the continuously fed cigarette rod, a revolving and adjustably suspended cutter carrier mounted on a driving-shaft, a sickle shaped cutter'adjustably" fixed in said carrier, means on said carrier adapted to cooperate with means on said driving shaft forpositioning said carrier into different planes inclined relative to the movement of said rod whereby during its cutting operation said cutter will pass through said guide and means for moving sail guide with the speed of the cigarette ro 4. In a cigarette rod cutting machine. a re- 'volving sickle shaped cutter. means for adjusting said cutter to difi'ereut planes inclined relative to the movementof said rod. and a grinding roll in the path of said cutter. and means for causing said roll to constantly for the adjustment of the fulcrum of said press with its-Peri heral faceagainst the cutting edge of sai cutter when the latter passes said roll 2 5. In a cigarette rod cutting machine, a revolving helical cutter, a carrier for said cutter, means for adjustably suspending said carrier whereby the latter may be positioned into planes of different angles of inclination relative to the movement of said rod, a grinding roll in the path of said cutter, means including a rock lever carrying said roll and means for so controlling the movement of said rock lever as to cause said roll to constantly press with its peripheral face against the cutting edge of said cutter as the latter passes said roll.

6. In a cigarette rod cutting machine, a helical cutter, means for adjusting said cutter to different planes inclined relative to the movement of said rod, a grinding roll in the path of said cutter, a rock lever carrying said grinding roll and an adjustable bearing on said rock lever for said grinding roll, whereby the axis of said roll can be adjusted relative the cutting edge of said cutter.

7 In a cigarette rod cutting machine, a sickle shaped cutter, means whereby the latter may be positioned into planes of different angles of inclination relative to the movement of said rod, a revolving shaft carrying said cutter, a circularly adjustable bearing, for said shaft, a grinding roll in the path of said cutter and movable means for supporting said roll so that the latter during the cutting operation -will be pressed against the cutting edge as the latter passes said roll.

8. In a cigarette rod cutting machine, a casing provided with a chamber having an opening in the top thereof, said chamber containing lubrication medium, driving means therein, a lid adjustably borne in the top opening of said chamber, a shaft borne on said lid and driven from said driving means, a cutter carrier outside of said lid and mounted on said shaft, and a sickle shaped cutter fixed in said carrier.

9. In a cigarette rod cutting machine, a revolving sickle shaped cutter, means for adjusting said cutter to different planes inclined relative to the movement of said rod, a grinding roll in the pathof said cutter, a rock lever carrying said roll having an adjustable fulcrum, means for imparting a rocking movementto said lever and means lever.

10. In a cigarette rod cutting machine, the combination with a revolving sickle shaped cutter, of means for adjusting said cutter to different planes inclined relative to the move- 11. In a cigarette rod cutting machine, the combination with a revolving sickle shaped cutter, of means for adjusting said cutter to different planes inclined relative to the movement of the cigarette rod, a grinding rollin the path ,of said cutter, a bearing for said cutter composed of two adjustably connected members and a rock lever carrying said bearing.

12. In a cigarette rod cutting machine, a driven spindle, a cutter suspended from said spindle and means for the adjustment of the angle of inclination of said spindle relative to the feeding direction of the cigarette rod, to cause said cutter to produce a out exactly at a right angle to said cigarette rod.

13. In a cigarette rod cutting machine, the I combination with driving means, of a revolving sickle shaped cutter, means for adjusting said cutter to different planes inclined relative to the movement of the cigarette rod, a pair of members reciprocated from said driving means with the speed of the ciga rette rod and a guide for the ci arette rod carried by said members, said sic le shaped cutter being adapted during the cutting operation to pass through said guide.

14. In a cigarette rod cutting machine, the combination with driving means, of crank operated rectilinearly guided members, a guide for the continuously fed cigarette rod carried by said members, and a revolving sickle shaped cutter, means for adjusting said cutter to different planes inclined relative to the movement of said rod, said cutter being adapted during the cutting operation to pass through said guide and produce a cut through the cigarette rod at a right angle thereto.

15. In a cigarette rod cutting machine, a reciprocating guide for the cigarette rod and a cutter supported at a fixed point on a driven spindle but adjustable into planes of different said two cooperating means include a bifurcated portion on the end of said shaft and a pin mounted on said carrier, said pin being adapted to be borne in the arms of said bifurcated portion.

In testimony whereof I afiix my signature. MAX PAUL ERNST HOHN.

ment of the ci arette rod, a grinding roll in the path 0 said cutter, an adjustable bearing for said roll, a rocking lever carrying said bearing and crank operated means for rocking said lever. 

